| functional mr imaging of regional brain responses to pleasant and unpleasant odors. | odors can elicit a range of behaviors and emotions. our purpose was to identify regional activation of the human cerebral cortex in response to pleasant (positive hedonic value) and unpleasant (negative hedonic value) odors. | 1998 | 9802496 |
| effect of gamma-irradiation on phenolic compounds and phenylalanine ammonia-lyase activity during storage in relation to peel injury from peel of citrus clementina hort. ex. tanaka. | the influence of gamma-irradiation on the content of phenolic compounds was evaluated on moroccan citrus fruits (citrus clementina hort. ex. tanaka) treated at a mean dose of 0.3 kgy and stored for 49 days at 3 degrees c. the results show that irradiation has enhanced the synthesis of total phenolic compounds and is correlated with phenylalanine ammonia-lyase activity (pal) during storage. accumulation of phenolic compounds in cells is demonstrated and may be explained by the enhancement of pal ... | 2000 | 10691675 |
| incidence and epidemiology of citrus tristeza virus in the valencian community of spain. | the first outbreak of citrus tristeza disease in spain caused by citrus tristeza virus (ctv) was recorded in 1957 in the valencian community (vc). in total c. 40 million trees, mainly of sweet orange and mandarin grafted on sour orange rootstocks, declined due to ctv. large-scale surveys in different municipalities of the vc indicated that the disease spread very fast. incidence increased from 11% in 1989 to 53% in 1998. toxoptera aurantii and aphis spiraecola (inefficient aphid vectors of ctv) ... | 2000 | 11137164 |
| economic thresholds for aphis gossypii (hemiptera: aphididae) on citrus clementina. | different levels of aphis gossypii glover were maintained on clementine trees by means of isolation inside mesh cages. clementine yield loss was correlated with the number of aphids per square meter of canopy, obtaining the corresponding formula. starting from this formula, the economic injury level (eil) was calculated as follows: [218,333c + 11,130.6 vp0k]/[57.08 vp0k - 100c] = eil (aphids/m2), where c = total insecticide cost per hectare, v = fruit price per kilogram, p0 = yield per hectare o ... | 2001 | 11332836 |
| the diversification of citrus clementina hort. ex tan., a vegetatively propagated crop species. | clementines, due to their high quality, are one of the most important cultivated citrus mandarins. as in the case of sweet orange and satsuma mandarins, genetic variability within this species is minimal when analyzed by molecular markers, because the existing varieties have not been obtained through hybridization, but through the selection of spontaneous mutations affecting traits of agronomic interest. this would explain, at least in part, the greater diversity for agronomic traits when compar ... | 2001 | 11697922 |
| [two complementary dominant genes controlling apomixis in genus citrus and poncirus]. | apomixis is very common in citrus genus and its related genus. two monoembryonic tangerine varieties (c. reticulata blanco) clementine and wilking were used as seed parents to cross with four polyembryonic orange varieties [c. sinensis (l.) osbeck]. both sexual and apomictic progenies were found in each f1 population with different segregation ratios. in a total of 74 wilking progenies, 23 were monoembryonic and 51 polyembryonic and the ratio of sexual and apomictic progenies was about 1:2 teste ... | 2001 | 11725641 |
| inheritance of organelle dna sequences in a citrus-poncirus intergeneric cross. | many land plants deviate from the maternal pattern of organelle inheritance. in this study, heterologous mitochondrial and chloroplast probes were used to investigate the inheritance of organelle genomes in the progeny of an intergeneric cross. the seed parent was lb 1-18 (a hybrid of citrus reticulata blanco cv. clementine x c. paradisi macf. cv. duncan) and the pollen parent was the cross-compatible species poncirus trifoliata (l.) raf. all 26 progeny examined exhibited maternal inheritance of ... | 2002 | 12195032 |
| dry matter accumulation in citrus fruit is not limited by transport capacity of the pedicel. | the vascularization of the pedicel in marisol clementine (citrus clementina hort. ex tanaka) has been characterized in relation to fruit growth. phloem and xylem formation occurred during the first half of the period of fruit growth. phloem cross-sectional area reached its maximum value by the end of fruitlet abscission, 78 d after anthesis (daa), shortly after the rate of accumulation of dry matter in fruitlets reached its maximum value. secondary xylem formation occurred until day 93, well aft ... | 2002 | 12451031 |
| effect of gamma-irradiation combined with washing and waxing treatment on physicochemical properties, vitamin c, and organoleptic quality of citrus clementina hort. ex. tanaka. | to enhance the shelf life of a late variety of moroccan citrus clementina (nour), ionizing treatments were applied at 0.3 kgy, as well as washing (cold water) and waxing treatments. it has been found that, despite the irradiation treatment, the washing and waxing treatment do not improve the quality of c. clementina, but rather result in yellower peels, peel injury, and reductions of vitamin c content, acidity, and soluble solids. however, gamma-irradiation alone enhanced significantly (p <or= 0 ... | 2002 | 12452643 |
| juice components of a new pigmented citrus hybrid citrus sinensis (l.) osbeck x citrus clementina hort. ex tan. | fruit juice of a new pigmented citrus hybrid named omo-31 and those of its parents clementine cv. oroval (citrus clementina hort. ex tan.) and moro orange [citrus sinensis (l.) osbeck] were analyzed during fruit maturation to determine juice yield, total soluble solids (tss), total acidity (ta), tss/ta ratio (classical parameters of quality), and potential health beneficial components, such as vitamin c, flavanones, anthocyanins, and phenolic acids. results showed that juice yield, ta, tss, and ... | 2003 | 12617593 |
| improvement of citrus clementina hort. ex tan. microspore-derived embryoid induction and regeneration. | an improvement of the protocol for haploid induction through anther culture of citrus clementina hort. ex tan. cv. nules was achieved following the evaluation of a number of the factors affecting androgenesis. the influence of thidiazuron (tdz) and three temperature pre-treatments (4 degrees c, 25 degrees c, 32 degrees c) on the floral buds with respect to anther culture of c. clementina hort. ex tan., cv. nules was investigated. an increased embryoid production was induced in the medium supplem ... | 2003 | 12879259 |
| identification and genomic distribution of gypsy like retrotransposons in citrus and poncirus. | transposable elements might be importantly involved in citrus genetic instability and genome evolution. the presence of gypsy like retrotransposons, their heterogeneity and genomic distribution in citrus and poncirus, have been investigated. eight clones containing part of the pol coding region of gypsy like retrotransposons have been isolated from a commercial variety of citrus clementina, one of the few sexual species in citrus. four of the eight clones might correspond to active elements give ... | 2003 | 12937896 |
| a survey of genes differentially expressed during long-term heat-induced chilling tolerance in citrus fruit. | long-term storage at low, non-freezing, temperature (1.5 degrees c) induces chilling injury in fruit of fortune mandarin (citrus clementina hort. ex tanaka x citrus reticulata, blanco), manifested as pitting and brown depressed areas that may end up with local cell death. pre-conditioning of fruit for 3 days at 37 degrees c prevented chilling injury. the use of suppression subtractive hybridization permitted the isolation of genes differentially expressed in heat-conditioned fruit exposed to chi ... | 2003 | 13680227 |
| targeted cybridization in citrus: transfer of satsuma cytoplasm to seedy cultivars for potential seedlessness. | cms (cytoplasmic male sterility) can be controlled by the mitochondrion genome in higher plants, including satsuma mandarin. somatic fusion experiments in citrus combining embryogenic callus protoplasts of one parent with leaf protoplasts of a second parent often produce cybrid plants of the leaf parent, a phenomenon occurring most often with interspecific fusion combinations. in an attempt to practically exploit this cybridization phenomenon, we conducted somatic fusion experiments combining em ... | 2004 | 14730385 |
| estimation of the number of aphids carrying citrus tristeza virus that visit adult citrus trees. | aphid species were counted on citrus trees in orchards in valencia, spain, in the spring and autumn of 1997, 1998 and 1999. moericke yellow water traps, the 'sticky shoot' method and counts of established colonies were used in extensive surveys in which 29,502 aphids were recorded and identified. aphis spiraecola and aphis gossypii were the most abundant aphid species. the numbers of aphid species landing on mature trees of grapefruit, sweet orange, lemon and clementine and satsuma mandarins, we ... | 2004 | 15036840 |
| dehydrin from citrus, which confers in vitro dehydration and freezing protection activity, is constitutive and highly expressed in the flavedo of fruit but responsive to cold and water stress in leaves. | a cdna encoding a dehydrin was isolated from the flavedo of the chilling-sensitive fortune mandarin fruit (citrus clementina hort. ex tanaka x citrus reticulata blanco) and designed as crcor15. the predicted crcor15 protein is a k2s member of a closely related dehydrin family from citrus, since it contains two tandem repeats of the unusual citrus k-segment and one s-segment (serine cluster) at an unusual c-terminal position. crcor15 mrna is consistently and highly expressed in the flavedo during ... | 2004 | 15053535 |
| efficacy assessment of candida oleophila (strain o) and pichia anomala (strain k) against major postharvest diseases of citrus fruits in morocco. | two yeasts, candida oleophila (strain o) and pichia anomala (strain k), were previously selected for their antagonistic activity against postharvest diseases on apples and pears. the objective of the study was to determine the efficacy of both antagonistic yeast's against wound postharvest pathogens of citrus fruits. the efficacy of both strains (applied at 10(5), 10(6) and 10(8) cfu/ml) was assessed against penicillium digitatum and p. italicum inoculated after one hour (at a concentration of 1 ... | 2004 | 15756846 |
| varietal and interspecific influence on micronutrient contents in citrus from the mediterranean area. | to specify the genotypic variation of mediterranean citrus juices, the contents of carotenoids, flavonoids, and vitamin c were determined by high-performance liquid chromatography. a selection of orange varieties and mandarin species from the mediterranean area (citrus sinensis, citrus deliciosa ten, and citrus clementina hort. ex tan) was evaluated using carotenoid profiles and flavanones contents. among the eight varieties of orange (salustiana, hamlin, shamouti, pera, valencia, maltaise, sang ... | 2005 | 15769147 |
| development of a citrus genome-wide est collection and cdna microarray as resources for genomic studies. | a functional genomics project has been initiated to approach the molecular characterization of the main biological and agronomical traits of citrus. as a key part of this project, a citrus est collection has been generated from 25 cdna libraries covering different tissues, developmental stages and stress conditions. the collection includes a total of 22,635 high-quality ests, grouped in 11,836 putative unigenes, which represent at least one third of the estimated number of genes in the citrus ge ... | 2005 | 15830128 |
| w.w.w. moon? the why, what and when of a permanent manned lunar colony. | several reasons for going back to the moon are listed: scientific study of our natural satellite, earth and in general the solar system; exploitation of the resources of outer space; geopolitical considerations that made apollo possible and are still valid in the long term; advancement of manned spaceflight, as robot-based exploration is time-wise inefficient and politically negligible. technological, organisational and legal challenges are then outlined. after a discussion of human physiology, ... | 2005 | 15852541 |
| effects of nucleo-cytoplasmic interactions on leaf volatile compounds from citrus somatic diploid hybrids. | three diploid citrus somatic hybrids (cybrids) were produced by fusions combining nucellar callus-derived protoplasts of willow leaf mandarin (citrus deliciosa ten.) and commune clementine (citrus clementina hort. ex tan.) with, respectively, leaf protoplasts of eureka lemon [citrus limon (l.) burm.] and marumi kumquat [fortunella japonica (thunb.) swing.] and leaf protoplasts of marumi kumquat. ploidy and origins of the nuclear, chloroplastic, and mitochondrial genomes were investigated by flow ... | 2005 | 15913319 |
| endogenous free polyamines and their role in fruit set of low and high parthenocarpic ability citrus cultivars. | endogenous free polyamines (pas), putrescine, spermidine and spermine, from developing fruitlets of citrus species (citrus unshiu marc. and citrus clementina hort ex tanaka) which differ in their parthenocarpic ability, and from uniflowered leafy and leafless inflorescences differing in their ability to set, have been determined by dansylation and separation of dansyl derivatives by hplc. no significant differences in pas content were observed between species or between leafy and leafless inflor ... | 2005 | 16146310 |
| development of a biological control method against postharvest diseases of citrus fruits. | candida oleophila strain o was previously selected for its high and reliable antagonistic activity against botrytis cinerea and penicillium expansum, two important wound pathogens on post-harvest apples. the application of these antagonistic strains on wound pathogens of citrus was more recently undertaken. the efficacy of yeast (applied at several concentrations from 10(5) to 10(8) cfu/ml) was assessed against p. digitatum and p. italicum inoculated after one hours (at a concentration of 10(5), ... | 2005 | 16637158 |
| responses of citrus plants to ozone: leaf biochemistry, antioxidant mechanisms and lipid peroxidation. | the effects of ozone upon 3-year-old trees of clementina mandarin (citrus clementina hort. ex tan.) cv. marisol exposed for 12 months to ambient (10 nl l(-1)) and high (30 and 65 nl l(-1)) concentrations in open top chambers (otcs) were investigated. the data showed that in leaves, ozone reduced total chlorophylls, carotenoid and carbohydrate concentration, and increased 1-aminocyclopropane-1-carboxylic acid (acc) content and ethylene production. in treated plants, the ascorbate leaf pool was de ... | 2006 | 16644230 |
| gibberellins and parthenocarpic ability in developing ovaries of seedless mandarins. | satsuma (citrus unshiu [mak] marc.) and clementine (citrus reticulata [hort.] ex. tanaka, cv oroval) are two species of seedless mandarins differing in their tendency to develop parthenocarpic fruits. satsuma is a male-sterile cultivar that shows a high degree of natural parthenocarpy and a high fruit set. seedless clementine varieties are self-incompatible, and in the absence of cross-pollination show a very low ability to set fruit. the gibberellins (gas) ga53, putative 17-oh-ga(53), ga(44), g ... | 1992 | 16669076 |
| regulation of color break in citrus fruits. changes in pigment profiling and gene expression induced by gibberellins and nitrate, two ripening retardants. | citrus clementina fruits were repeatedly treated on-tree from mature green until breaker stages with either nitrate or gibberellin, two retardants of external ripening. the natural color break was characterized by a reduction in chlorophyll concentration, a decrease in beta,epsilon-carotenoids, beta-carotene, neoxanthin, and all-e-violaxanthin, and an increase in beta,beta-xanthophylls [mainly (9z)-violaxanthin and beta-cryptoxanthin]. the two retardants delayed both chlorophyll depletion and to ... | 2006 | 16787044 |
| residues of the quinone outside inhibitor fungicide trifloxystrobin after postharvest dip treatments to control penicillium spp. on citrus fruit. | the effectiveness of postharvest dip treatment with trifloxystrobin (tfx) or imazalil (imz) was compared for controlling green and blue mold (caused by penicillium digitatum and penicillium italicum, respectively) of citrus fruit. residues retained by fruit were determined as a function of treatment time, dip temperature, and storage conditions. trials on 'avana apireno' mandarin oranges artificially inoculated with p. digitatum or p. italicum revealed that treatments with 200 to 600 mg/liter ac ... | 2006 | 16865899 |
| global analysis of gene expression during development and ripening of citrus fruit flesh. a proposed mechanism for citric acid utilization. | microarrays of cdna have been used to examine expression changes of 7000 genes during development and ripening of the fruit flesh of self-incompatible citrus clementina, a non-climateric species. the data indicated that 2243 putative unigenes showed significant expression changes. functional classification revealed that genes encoding for regulatory proteins were significantly overrepresented in the up-regulated gene clusters. the transcriptomic study together with the analyses of selected metab ... | 2006 | 16897468 |
| intervention thresholds for aphis spiraecola (hemiptera: aphididae) on citrus clementina. | the production of clementine fruit was affected by varying densities of aphis spiraecola patch (hemiptera: aphididae) maintained on four groups of clementine, citrus clementina hort. ex tan., trees individually isolated in mesh cages. a formula relating the number of aphids per square meter of canopy per group of trees to yield loss in that group of trees was obtained, permitting us to calculate the economic injury levels (eils) and economic thresholds (ets) for treatment against a. spiraecola, ... | 2006 | 16937682 |
| approaches for sampling the twospotted spider mite (acari: tetranychidae) on clementines in spain. | tetranychus urticae koch (acari: tetranychidae) is an important pest of clementine mandarins, citrus reticulata blanco, in spain. as a first step toward the development of an integrated crop management program for clementines, dispersion patterns of t. urticae females were determined for different types of leaves and fruit. the study was carried out between 2001 and 2003 in different commercial clementine orchards in the provinces of castelló and tarragona (northeastern spain). we found that sym ... | 2006 | 16937708 |
| analysis of 13000 unique citrus clusters associated with fruit quality, production and salinity tolerance. | improvement of citrus, the most economically important fruit crop in the world, is extremely slow and inherently costly because of the long-term nature of tree breeding and an unusual combination of reproductive characteristics. aside from disease resistance, major commercial traits in citrus are improved fruit quality, higher yield and tolerance to environmental stresses, especially salinity. | 2007 | 17254327 |
| induced parthenogenesis in mandarin for haploid production: induction procedures and genetic analysis of plantlets. | this study focused on haploid induction in mandarin through in situ gynogenesis by pollination with irradiated pollen of 'meyer' lemon. pollination was carried out for three genotypes of mandarin with four levels of gamma-ray-irradiated pollen (150, 300, 600, and 900 gy). the resulting seeds were characterised by a small size. embryos were rescued in vitro and the ploidy level of the plantlets was determined by flow cytometry analysis. haploid, diploid, triploid plantlets were obtained. the hapl ... | 2007 | 17318461 |
| molecular characterization of cevd strains that induce different phenotypes in gynura aurantiaca: structure-pathogenicity relationships. | two citrus exocortis viroid isolates (cevd-s and cevd-129) that induce severe and mild symptoms in gynura aurantiaca, respectively, have been characterized. they present nucleotide sequences in the pathogenicity motifs p(l), c and p(r) similar to those of "class a" and "class b". infectivity and symptom expression in g. aurantica and tomato were evaluated with a selection of sequence variants recovered from both isolates. as expected, the two variants selected from cevd-s induced severe symptoms ... | 2007 | 17393070 |
| thermal degradation of antioxidant micronutrients in citrus juice: kinetics and newly formed compounds. | the thermal degradation kinetics of vitamin c, two carotenoids (beta-carotene and beta-cryptoxanthin), and hesperidin, as a function of temperature, were determined for citrus juice [citrus sinensis (l.) osbeck and citrus clementina hort. ex tan]. the influence of dissolved oxygen on the rate of ascorbic acid degradation was also assessed. analysis of kinetic data suggested a first-order reaction for the degradation of vitamin c and carotenoids. the kinetics parameters dtheta, z, and ea have bee ... | 2007 | 17451252 |
| class prediction of closely related plant varieties using gene expression profiling. | in recent years, class prediction experiments have been largely developed in cancer research with the aim of classifying unknown samples by examining their expression signature. in natural populations, a significant component of gene expression variability is also heritable. citrus species are an ideal model to accomplish the study of these questions in plants, due to the existence of varieties derived from somatic mutations that are likely to differ from each other by one or a few point mutatio ... | 2007 | 17452756 |
| effect of temperature on development and survival of the parasitoid pnigalio pectinicornis (hymenoptera: eulophidae) reared on phyllocnistis citrella (lepidoptera: gracillariidae). | laboratory studies were conducted to assess the effect of temperature on the development and survival of the indigenous parasitoid pnigalio pectinicornis l. on the citrus leaf miner phyllocnistis citrella stainton as host, fed on leaves of citrus sinensis l. osbck cultivar washington navel and citrus reticulata blanco cultivar clementine. experiments were conducted at five constant temperatures ranging from 15 to 32.5 degrees c, with 60 +/- 10% rh and a photoperiod of 14:10 (l:d) h. the relation ... | 2007 | 17540056 |
| production of transgenic adult plants from clementine mandarin by enhancing cell competence for transformation and regeneration. | genetic transformation of mature trees is difficult because adult tissues are recalcitrant to agrobacterium tumefaciens infection and transformation and because transgenic mature events are less competent for regeneration. we have shown that reinvigoration allows manipulation of the vegetative phase to increase the potential for transformation and regeneration without loss of competence for flowering and fruiting. to produce transgenic plants from clementine mandarin (citrus clementina hort. ex ... | 2008 | 17938114 |
| juice quality of two new mandarin-like hybrids (citrus clementina hort. ex tan x citrus sinensis l. osbeck) containing anthocyanins. | tacle and clara [monreal clementine (citrus clementina hort. ex tan) x tarocco orange (citrus sinensis l. osbeck)] are two new triploid citrus hybrids developed by the cra-istituto sperimentale per l'agrumicoltura (acireale, italy). the fruits are easy-peeling and juicy, have a pleasant taste like the tarocco orange, and are sweet like the monreal clementine. in addition, a distinctively attractive characteristic of these mandarin-like fruits is the red-pigmented flesh caused by the presence of ... | 2008 | 18298061 |
| ethylene-induced differential gene expression during abscission of citrus leaves. | the main objective of this work was to identify and classify genes involved in the process of leaf abscission in clementina de nules (citrus clementina hort. ex tan.). a 7 k unigene citrus cdna microarray containing 12 k spots was used to characterize the transcriptome of the ethylene-induced abscission process in laminar abscission zone-enriched tissues and the petiole of debladed leaf explants. in these conditions, ethylene induced 100% leaf explant abscission in 72 h while, in air-treated sam ... | 2008 | 18515267 |
| transferability of the est-ssrs developed on nules clementine (citrus clementina hort ex tan) to other citrus species and their effectiveness for genetic mapping. | during the last decade, numerous microsatellite markers were developed for genotyping and to identify closely related plant genotypes. in citrus, previously developed microsatellite markers were arisen from genomic libraries and more often located in non coding dna sequences. to optimize the use of these est-ssrs as genetic markers in genome mapping programs and citrus systematic analysis, we have investigated their polymorphism related to the type (di or trinucleotide) or their position in the ... | 2008 | 18558001 |
| characterization of hemizygous deletions in citrus using array-comparative genomic hybridization and microsynteny comparisons with the poplar genome. | many fruit-tree species, including relevant citrus spp varieties exhibit a reproductive biology that impairs breeding and strongly constrains genetic improvements. in citrus, juvenility increases the generation time while sexual sterility, inbreeding depression and self-incompatibility prevent the production of homozygous cultivars. genomic technology may provide citrus researchers with a new set of tools to address these various restrictions. in this work, we report a valuable genomics-based pr ... | 2008 | 18691431 |
| mandarin juice improves the antioxidant status of hypercholesterolemic children. | oxidative stress has been linked to such degenerative diseases as atherosclerosis, and it has been suggested that increased dietary intake of antioxidants may reduce its progression. | 2008 | 18728533 |
| development of genomic resources for citrus clementina: characterization of three deep-coverage bac libraries and analysis of 46,000 bac end sequences. | citrus species constitute one of the major tree fruit crops of the subtropical regions with great economic importance. however, their peculiar reproductive characteristics, low genetic diversity and the long-term nature of tree breeding mostly impair citrus variety improvement. in woody plants, genomic science holds promise of improvements and in the citrus genera the development of genomic tools may be crucial for further crop improvements. in this work we report the characterization of three b ... | 2008 | 18801166 |
| comparative life-history traits of three phytoseiid mites associated with tetranychus urticae (acari: tetranychidae) colonies in clementine orchards in eastern spain: implications for biological control. | the management of tetranychus urticae, a key pest of clementine trees, is mainly based on the use of acaricides. however, more environmentally safe measures, such as biological control, are being encouraged. life-history traits of the three most abundant phytoseiid mites associated with t. urticae on this crop (euseius stipulatus, phytoseiulus persimilis and neoseiulus californicus) were studied. the experiments were performed under laboratory conditions (25 degrees c, 80 +/- 5% rh and 16:8 h (l ... | 2009 | 18931925 |
| citrus viroid v: occurrence, host range, diagnosis, and identification of new variants. | the recently described citrus viroid v (cvd-v) has been proposed as a new species of the genus apscaviroid within the family pospiviroidae. analysis of 64 samples from different citrus-growing areas has shown that cvd-v is present in the united states, spain, nepal, and the sultanate of oman. cvd-v found in six sweet orange sources from the sultanate of oman was identical to the reference cvd-v variant, whereas three new variants with sequence identities of 98.6% (cvd-vca), 97.3% (cvd-vst), and ... | 2008 | 18943408 |
| interactions between citrus viroids affect symptom expression and field performance of clementine trees grafted on trifoliate orange. | abstract citrus exocortis viroid (cevd), citrus bent leaf viroid (cblvd), a noncachexia variant of hop stunt viroid (hsvd), citrus viroid iii (cvd-iii), and citrus viroid iv (cvd-iv) were co-inoculated as two-, three-, four-, and five-viroid mixtures to clementine trees grafted on trifoliate orange to evaluate their effect on symptom expression, tree growth, and fruit yield. most trees infected with cevd-containing viroid mixtures developed exocortis scaling symptoms, as did cevd alone, whereas ... | 2006 | 18943417 |
| effects of rootstock and flushing on the incidence of three insects on 'clementine de nules' citrus trees. | we evaluated the influence of six different citrus rootstocks on the incidence of the citrus leafminer, phyllocnistis citrella stainton (lepidoptera: gracillariidae), and the aphid species, aphis gossypii glover and a. spiraecola patch (hemiptera: aphididae), on 'clementine de nules' trees (citrus clementina hort. ex tan.). sampling was conducted during 2005 and 2006 in a grove of 3-yr-old trees in southern spain with six rootstocks arranged in a completely randomized block design. incidence (i. ... | 2008 | 19161697 |
| curative and preventive activity of hydroxypropyl methylcellulose-lipid edible composite coatings containing antifungal food additives to control citrus postharvest green and blue molds. | edible composite coatings based on hydroxypropyl methylcellulose (hpmc), lipid components (beeswax and shellac), and food preservatives with antifungal properties were evaluated in vivo on clementine mandarins cv. clemenules, hybrid mandarins cv. ortanique, and oranges cv. valencia. their curative and preventive activity against citrus postharvest green (gm) and blue molds (bm), caused by penicillium digitatum (pd) or penicillium italicum (pi), respectively, were determined. fruits were artifici ... | 2009 | 19256514 |
| pathotypes and genetic relationship of worldwide collections of elsinoë spp. causing scab diseases of citrus. | two scab diseases are recognized currently on citrus: citrus scab, caused by elsinoë fawcettii, and sweet orange scab, caused by e. australis. because the two species cannot be reliably distinguished by morphological or cultural characteristics, host range and molecular methods must be used to identify isolates. four pathotypes of e. fawcettii and two of e. australis have been described to date based on host range. the host specificity and genetic relationships among 76 isolates from argentina, ... | 2009 | 19453232 |
| intraguild interactions between euseius stipulatus and the candidate biocontrol agents of tetranychus urticae in spanish clementine orchards: phytoseiulus persimilis and neoseiulus californicus. | spanish clementine orchards are frequently infested by the two-spotted spider mte tetranychus urticae. natural control of t. urticae is insufficient despite the presence of neoseiulus californicus and phytoseiulus persimilis. the phytoseiid community is dominated by the generalist euseius stipulatus which is poorly adapted to exploit t. urticae. having the intention to promote biological control of t. urticae by augmentative releases we were interested whether p. persimilis and n. californicus a ... | 2010 | 19517257 |
| recovery and characterization of a citrus clementina hort. ex tan. 'clemenules' haploid plant selected to establish the reference whole citrus genome sequence. | in recent years, the development of structural genomics has generated a growing interest in obtaining haploid plants. the use of homozygous lines presents a significant advantage for the accomplishment of sequencing projects. commercial citrus species are characterized by high heterozygosity, making it difficult to assemble large genome sequences. thus, the international citrus genomic consortium (icgc) decided to establish a reference whole citrus genome sequence from a homozygous plant. due to ... | 2009 | 19698121 |
| effects of euseius stipulatus on establishment and efficacy in spider mite suppression of neoseiulus californicus and phytoseiulus persimilis in clementine. | the two-spotted spider mite, tetranychus urticae, is one of the most problematic phytophagous pests in spanish clementine orchards. the most abundant predatory mites in this ecosystem are euseius stipulatus, phytoseiulus persimilis and neoseiulus californicus. euseius stipulatus is dominant but poorly adapted to utilize t. urticae as prey. it mainly persists on pollen and citrus red mite, panonychus citri. a recent study suggested that the more efficacious t. urticae predators p. persimilis and ... | 2010 | 19777356 |
| efficacy of neoseiulus californicus and phytoseiulus persimilis in suppression of tetranychus urticae in young clementine plants. | tetranychus urticae is one of the most damaging tetranychid mites affecting clementine orchards in spain, where natural control is insufficient. furthermore, in clementine nurseries, tender foliage is highly susceptible to attack and natural enemies are almost always absent. therefore, acaricides are often used indiscriminately. alternative control measures are necessary, both in commercial orchards and clementine nurseries. in order to assess the efficacy of inoculative releases of n. californi ... | 2010 | 19784783 |
| effect of genotype and environment on citrus juice carotenoid content. | a selection of orange and mandarin varieties belonging to the same citrus accession and cultivated in mediterranean (corsica), subtropical (new caledonia), and tropical areas (principally tahiti) were studied to assess the effect of genotype and environmental conditions on citrus juice carotenoid content. juices from three sweet orange cultivars, that is, pera, sanguinelli, and valencia ( citrus sinensis (l.) osbeck), and two mandarin species ( citrus deliciosa ten and citrus clementina hort. ex ... | 2009 | 19807162 |
| expression of polyamine biosynthesis genes during parthenocarpic fruit development in citrus clementina. | polyamines have been attributed a general role in fruit development in several plants like pea and tomato. to investigate the involvement of these compounds in parthenocarpic fruit development in citrus clementina, we have isolated three genes encoding aminopropyl transferases in this species: ccspds, ccspm1 and ccacl5. the unambiguous identity of the proteins encoded by these genes was confirmed by phylogenetic analysis and by heterologous expression in yeast mutants deficient in aminopropyl tr ... | 2010 | 20336313 |
| spray deposition and efficacy of four petroleum-derived oils used against tetranychus urticae (acari: tetranychidae). | petroleum-derived spray oils (pdsos) offer an interesting alternative to acaricides to control the twospotted spider mite, tetranychus urticae koch (acari: tetranychidae), a key pest of clementine mandarins, citrus reticulata blanco. however, there is a lack of knowledge on how these products should be used. in this study, we evaluated the efficacy of four pdsos (sunspray ultrafine, volck miscible, texaco d-c-tron plus, and agroaceite) at five concentrations (0.5, 1.0, 1.5, 2.0, and 3.0%) agains ... | 2010 | 20429453 |
| tissue-specific transcriptome profiling of the citrus fruit epidermis and subepidermis using laser capture microdissection. | most studies of the biochemical and regulatory pathways that are associated with, and control, fruit expansion and ripening are based on homogenized bulk tissues, and do not take into consideration the multiplicity of different cell types from which the analytes, be they transcripts, proteins or metabolites, are extracted. consequently, potentially valuable spatial information is lost and the lower abundance cellular components that are expressed only in certain cell types can be diluted below t ... | 2010 | 20519339 |
| decision model for acute appendicitis treatment with decision tree technology--a modification of the alvarado scoring system. | how to decide the proper time to do laparotomies for acute appendicitis patients is sometimes very difficult, especially in areas with no imaging diagnostic tools. the alvarado scoring system (ass) is a convenient and inexpensive decision making tool; however, its accuracy needs to be improved. the decision tree is the most frequently used data mining technology for diagnostic model building. this study used a decision tree to modify the ass and to prioritize the variables. | 2010 | 20728850 |
| comparative analysis of proteome changes induced by the two spotted spider mite tetranychus urticae and methyl jasmonate in citrus leaves. | citrus plants are currently facing biotic and abiotic stresses. therefore, the characterization of molecular traits involved in the response mechanisms to stress could facilitate selection of resistant varieties. although large cdna microarray profiling has been generated in citrus tissues, the available protein expression data are scarce. in this study, to identify differentially expressed proteins in citrus clementina leaves after infestation by the two-spotted spider mite tetranychus urticae, ... | 2011 | 20926159 |
| rapid simultaneous determination of amines and organic acids in citrus using high-performance liquid chromatography. | rapid analytical method for the simultaneous separation and determination of amines and organic acids is a vital interest for quality control of citrus and their products. in the present study, a simultaneous high performance liquid chromatography (hplc) method for the rapid separation of three amines and two organic acids was developed. chromatographic separation of compounds was achieved using xbridge c(18) column at ambient temperature, with an isocratic mobile phase of 3mm phosphoric acid at ... | 2010 | 21147342 |
| identification of a gcc transcription factor responding to fruit colour change events in citrus through the transcriptomic analyses of two mutants. | external ripening in citrus fruits is morphologically characterized by a colour shift from green to orange due to the degradation of chlorophylls and the accumulation of carotenoid pigments. although numerous genes coding for enzymes involved in such biochemical pathways have been identified, the molecular control of this process has been scarcely studied. in this work we used the citrus clementina mutants 39b3 and 39e7, showing delayed colour break, to isolate genes potentially related to the r ... | 2010 | 21159189 |
| a stress responsive alternative splicing mechanism in citrus clementina leaves. | chitinases are often considered pathogenesis-related proteins since their activity can be induced by viral infections, fungal and bacterial cell wall components, and also by more general sources of stress such as wounding, salicylic acid, ethylene, auxins and cytokinins. in the present study, comparative proteomic analysis showed the defense-related acidic chitinase ii to be specifically induced in citrus clementina leaves infested by the two-spotted spider mite tetranychus urticae or treated wi ... | 2011 | 21310505 |
| realistic anatomical prostate models for surgical skills workshops using ballistic gelatin for nerve-sparing radical prostatectomy and fruit for simple prostatectomy. | understanding of prostate anatomy has evolved as techniques have been refined and improved for radical prostatectomy (rp), particularly regarding the importance of the neurovascular bundles for erectile function. the objectives of this study were to develop inexpensive and simple but anatomically accurate prostate models not involving human or animal elements to teach the terminology and practical aspects of nerve-sparing rp and simple prostatectomy (sp). | 2011 | 21379431 |
| role of the cultivar in choosing clementine fruits with a high level of health-promoting compounds. | thirteen cultivars and two hybrids of clementine fruits (citrus clementina hort. ex. tan) cultivated in italy were characterized according to ph, titratable acidity, total soluble solids, total polyphenols, carotenoids, vitamin c, hesperidin, rutin, narirutin and naringin and radical scavenging activity. the presence of rutin in clementine fruit juice is reported for the first time here. the results indicated that all chemical parameters statistically differentiated each cultivar (p < 0.001). in ... | 2011 | 21504146 |
| development of ssr markers from citrus clementina (rutaceae) bac end sequences and interspecific transferability in citrus. | • premise of the study: microsatellite primers were developed from bacterial artificial chromosome (bac) end sequences of citrus clementina and their transferability and polymorphism tested in the genus citrus for future anchorage of physical and genetic maps and comparative interspecific genetic mapping. • methods and results: using page and dna silver staining, 79 primer pairs were selected for their transferability and polymorphism among 526 microsatellites mined in bes. a preliminary diversi ... | 2010 | 21616814 |
| assessment of h1n1 questions and answers posted on the web. | background: a novel strain of human influenza a (h1n1) posed a serious pandemic threat worldwide during 2009. the public's fear of pandemic flu often raises awareness and discussion of such events. objectives: the goal of this study was to characterize major topical matters of h1n1 questions and answers raised by the online question and answer community yahoo! answers during h1n1 outbreak. methods: the study used text mining for spss clementine (v.12; spss inc., chicago, il) to extract the major ... | 2011 | 21840085 |
| characterization and comparison of volatile constituents of juice and peel from clementine, mandarin and their hybrids. | the volatile compositions of juice and peel of clementine (citrus reticulata x citrus sinensis var. commune), mandarin (citrus reticulata blanco var. willow leaf) and their hybrids were analyzed by headspace solid-phase extraction (hs-spme) coupled with gas chromatography and either a flame ionization detector (fid) or a mass spectrometer (ms). the major compounds of the volatile fractions of clementine and mandarin were limonene and limonene/gamma-terpinene, respectively. the volatile compositi ... | 2011 | 22164792 |
| cold treatment of ceratitis capitata (diptera: tephritidae) in oranges using a larval endpoint. | south africa currently exports fresh citrus (citrus spp.) fruit to japan using an in-transit cold treatment protocol of 14 d or 12 d at temperatures <0 degrees c for treatment of ceratitis capitata (wiedemann) (diptera: tephritidae) in 'clementine' mandarins (citrus reticulata blanco) and other citrus types, respectively. to reduce the risk of chilling injury with this treatment, research was conducted with temperatures >0 degrees c. earlier south african research had shown that young (6-d-old) ... | 2011 | 21882680 |
| exploiting bac-end sequences for the mining, characterization and utility of new short sequences repeat (ssr) markers in citrus. | the aim of this study was to develop a large set of microsatellite markers based on publicly available bac-end sequences (bess), and to evaluate their transferability, discriminating capacity of genotypes and mapping ability in citrus. a set of 1,281 simple sequence repeat (ssr) markers were developed from the 46,339 citrus clementina bac-end sequences (bes), of them 20.67% contained ssr longer than 20 bp, corresponding to roughly one perfect ssr per 2.04 kb. the most abundant motifs were di-nuc ... | 2011 | 22170603 |
| spatial and temporal spread of citrus tristeza virus and its aphid vectors in the north western area of morocco. | first report of citrus tristeza virus (ctv,closterovirus) in morocco datesback to 1961 in collections of citrus varieties. an exhaustive survey of citrus in the north of the country in 2009 revealed that ctv was spread all over the citrus production area. we attempted to evaluate the relative contribution of different aphid species in the spread of ctv disease in a citrus reticulata orchard at the loukkous region during 2 years (2012 and 2013). the overall ctv incidence estimated in the experime ... | 2016 | 25884375 |
| effect of postharvest practices including degreening on citrus carpoplane microbial biomes. | to investigate the effect of commercial citrus packhouse processing steps on the fruit surface microbiome of clementines and palmer navel oranges. | 2017 | 28052466 |
| [study of decision tree in the application of predicting protein-protein interactions]. | proteins are the final executive actor of cell viability and function. protein-protein interactions determine the complexity of the organism. research on the protein interactions can help us understand the function of the protein at the molecular level, learn the cell growth, development, differentiation, apoptosis and understand biological regulation mechanisms and other activities. they are essential for understanding the pathologies of diseases and helpful in the prevention and treatment of d ... | 2013 | 24459950 |
| assessment of fruit juice authenticity using uplc-qtof ms: a metabolomics approach. | in recent years, with the growing complexity of global food supply chains and trade, food fraud, including adulteration of high value foods with cheaper substitutes, has become an increasingly important issue. a metabolomics approach can be applied to discover biomarkers that can be used to trace food adulteration. a study was undertaken to discover novel, potential biomarkers for the rapid detection of the adulteration of fruit juices with cheaper alternatives. pineapple, orange, grapefruit, ap ... | 2014 | 24262519 |
| extensive citrus triploid hybrid production by 2x×4x sexual hybridizations and parent-effect on the length of the juvenile phase. | the citrus fresh market demands the production of seedless citrus fruits, as seedy fruits are not accepted by consumers. the recovery of triploid plants has proven to be the most promising approach to achieve this goal, since triploids have very low fertility, are generally seedless and do not induce seeds in other cultivars by cross pollination. triploid plants can be recovered by 2x×4x sexual hybridization. in this work, we present an effective methodology to recover triploid plants from 2x×4x ... | 2012 | 22614256 |
| why the aphid aphis spiraecola is more abundant on clementine tree than aphis gossypii? | aphis spiraecola and aphis gossypii cause harmful damages on clementine tree orchards. weekly surveys measured the abundance of aphids (larvae, winged and wingless adults) as well as of auxiliary insects and parameters of energy metabolism. correlatively, soluble carbohydrates, total free amino acids, free proline and condensed tannins were quantified in control and infested leaves. both aphid species showed parallel temporal variations, but a. spiraecola was consistently more abundant regardles ... | 2014 | 24581807 |
| evaluation of codon biology in citrus and poncirus trifoliata based on genomic features and frame corrected expressed sequence tags. | citrus, as one of the globally important fruit trees, has been an object of interest for understanding genetics and evolutionary process in fruit crops. meta-analyses of 19 citrus species, including 4 globally and economically important citrus sinensis, citrus clementina, citrus reticulata, and 1 citrus relative poncirus trifoliata, were performed. we observed that codons ending with a- or t- at the wobble position were preferred in contrast to c- or g- ending codons, indicating a close associat ... | 2013 | 23315666 |
| experimental evidence and in silico identification of tryptophan decarboxylase in citrus genus. | plant tryptophan decarboxylase (tdc) converts tryptophan into tryptamine, precursor of indolealkylamine alkaloids. the recent finding of tryptamine metabolites in citrus plants leads to hypothesize the existence of tdc activity in this genus. here, we report for the first time that, in citrus x limon seedlings, deuterium labeled tryptophan is decarboxylated into tryptamine, from which successively deuterated n,n,n-trimethyltryptamine is formed. these results give an evidence of the occurrence of ... | 2017 | 28208655 |
| lrr-rlk family from two citrus species: genome-wide identification and evolutionary aspects. | leucine-rich repeat receptor-like kinases (lrr-rlks) represent the largest subfamily of plant rlks. the functions of most lrr-rlks have remained undiscovered, and a few that have been experimentally characterized have been shown to have important roles in growth and development as well as in defense responses. although rlk subfamilies have been previously studied in many plants, no comprehensive study has been performed on this gene family in citrus species, which have high economic importance a ... | 2016 | 27515968 |
| the wrky transcription factor family in citrus: valuable and useful candidate genes for citrus breeding. | wrky transcription factors belong to a large family of plant transcriptional regulators whose members have been reported to be involved in a wide range of biological roles including plant development, adaptation to environmental constraints and response to several diseases. however, little or poor information is available about wrky's in citrus. the recent release of completely assembled genomes sequences of citrus sinensis and citrus clementina and the availability of ests sequences from other ... | 2016 | 27193354 |
| gibberellin reactivates and maintains ovary-wall cell division causing fruit set in parthenocarpic citrus species. | citrus is a wide genus in which most of the cultivated species and cultivars are natural parthenocarpic mutants or hybrids (i.e. orange, mandarin, tangerine, grapefruit). the autonomous increase in ga1 ovary concentration during anthesis was suggested as being the stimulus responsible for parthenocarpy in citrus regardless of the species. to determine the exact ga-role in parthenocarpic fruit set, the following hypothesis was tested: ga triggers and maintains cell division in ovary walls causing ... | 2016 | 27095396 |
| microspore embryogenesis through anther culture in citrus clementina hort. ex tan. | anther culture is a biotechnological method that allows to obtain, in one step, homozygous plants, very important to plant breeding, due to their numerous applications in mutation research, selection, genome sequencing, genetic analysis, and transformation. to induce the microspores, i.e., the immature male gametes, to switch from the normal gametophytic pathway to the sporophytic one, it is necessary to submit them to a type of stress, such as high or low temperature, starvation, or magnetic fi ... | 2016 | 26619882 |
| early embryo achievement through isolated microspore culture in citrus clementina hort. ex tan., cvs. 'monreal rosso' and 'nules'. | microspore embryogenesis is a method of achieving complete homozygosity from plants. it is particularly useful for woody species, like citrus, characterized by long juvenility, a high degree of heterozygosity and often self-incompatibility. anther culture is currently the method of choice for microspore embryogenesis in many crops. however, isolated microspore culture is a better way to investigate the processes at the cellular, physiological, biochemical, and molecular levels as it avoids the i ... | 2015 | 26124764 |
| genetic mapping of centromeres in the nine citrus clementina chromosomes using half-tetrad analysis and recombination patterns in unreduced and haploid gametes. | mapping centromere locations in plant species provides essential information for the analysis of genetic structures and population dynamics. the centromere's position affects the distribution of crossovers along a chromosome and the parental heterozygosity restitution by 2n gametes is a direct function of the genetic distance to the centromere. sexual polyploidisation is relatively frequent in citrus species and is widely used to develop new seedless triploid cultivars. the study's objectives we ... | 2015 | 25848689 |
| heat shock transcription factors expression during fruit development and under hot air stress in ponkan (citrus reticulata blanco cv. ponkan) fruit. | heat shock transcription factors (hsfs) play a role in plant responses to stress. citrus is an economically important fruit whose genome has been fully sequenced. so far, no detailed characterization of the hsf gene family is available for citrus. a genome-wide analysis was carried out in citrus clementina to identify hsf genes, named cchsfs. eighteen cchsfs were identified and classified into three main clades (clades a, b and c) according to the structural characteristics and the phylogenetic ... | 2015 | 25596345 |
| diversity in sensory quality and determining factors influencing mandarin flavor liking. | we evaluated the sensory quality of 42 mandarin varieties that belong to 7 different natural subgroups: common mandarin (citrus reticulata blanco), clementine (citrus clementina hort. ex. tan), satsuma (citrus unshiu marcovitch), mediterranean mandarin (citrus deliciosa tenore), king mandarin (citrus nobilis loureiro), and mandarin hybrids, such as tangor (citrus reticulata × citrus sinensis) and tangelo (citrus reticulata × citrus paradisi). consumer flavor acceptance tests revealed wide divers ... | 2015 | 25559381 |
| genome-wide analysis of citrus r2r3myb genes and their spatiotemporal expression under stresses and hormone treatments. | the r2r3myb proteins represent one of the largest families of transcription factors, which play important roles in plant growth and development. although genome-wide analysis of this family has been conducted in many species, little is known about r2r3myb genes in citrus, in this study, 101 r2r3myb genes has been identified in the citrus (citrus sinesis and citrus clementina) genomes, which are almost equal to the number of rice. phylogenetic analysis revealed that they could be subdivided into ... | 2014 | 25473954 |
| transcriptome and metabolome analyses of sugar and organic acid metabolism in ponkan (citrus reticulata) fruit during fruit maturation. | ponkan (citrus reticulata blanco cv. ponkan) is an important mandarin citrus in china. however, the low ratio of sugars to organic acids makes it less acceptable for consumers. in this work, three stages (s120, early development stage; s195, commercial harvest stage; s205, delayed harvest stage) of ponkan fruit were selected for study. among 28 primary metabolites analyzed in fruit, sugars increased while organic acids in general decreased. rna-seq analysis was carried out and 19,504 genes were ... | 2015 | 25455100 |
| economic threshold for tetranychus urticae (acari: tetranychidae) in clementine mandarins citrus clementina. | tetranychus urticae is a key pest of citrus in spain, especially of clementine mandarin trees. the effects of this mite on fruit production were assessed in 24 clementine trees for three consecutive years. trees were visited weekly and spider mite and phytoseiid mite populations and leaf flush patterns were estimated. at the end of the season, mandarins were harvested, weighed, and mite damage (scarring on the fruit) characterized. negative relationships between spider mite density and yield (kg ... | 2014 | 24122147 |
| cytological and molecular characterization of three gametoclones of citrus clementina. | three gametoclonal plants of citrus clementina hort. ex tan., cv. nules, designated esp, fra, and ita (derived from three labs in spain, france, and italy, respectively), were selected for cytological and molecular characterization in order to elucidate genomic rearrangements provoked by haploidization. the study included comparisons of their ploidy, homozygosity, genome integrity, and gene dosage, using chromosome counting, flow cytometry, ssr marker genotyping, and array-comparative genomic hy ... | 2013 | 24020638 |
| the citrus clementina putative allergens: from proteomic analysis to structural features. | several allergens have been identified and characterized in the genus citrus, which belongs to the germin-like proteins (gpls), profilins, and non-specific lipid transfer proteins (nsltps). in this work, in silico sequence analysis, protein purification, mass spectrometry identification, and the spectral counting method were integrated to identify new putative allergens of citrus clementina and their expression level in the fruit peel. the in silico analysis revealed fifteen new sequences belong ... | 2013 | 23927767 |
| proteomic analysis of "moncada" mandarin leaves with contrasting fruit load. | a proteomic approach was used to know more about the molecular mechanism related to citrus alternate bearing. to this end, we researched protein expression differences between on-crop and off-crop "moncada" [clementine 'oroval' (citrus clementina hort ex tanaka) x 'kara' mandarin (citrus unshiu marc. x citrus nobilis lou.)] mandarin leaves. this variety usually shows a remarkable behaviour in alternate production. samples were collected in the period during which the fruit affect flowering induc ... | 2013 | 23202483 |
| self-pollination and parthenocarpic ability in developing ovaries of self-incompatible clementine mandarins (citrus clementina). | this study aimed to determine if self-pollination is needed to trigger facultative parthenocarpy in self-incompatible clementine mandarins (citrus clementina hort. ex tan.). 'marisol' and 'clemenules' mandarins were selected, and self-pollinated and un-pollinated flowers from both cultivars were used for comparison. these mandarins are always seedless after self-pollination and show high and low ability to develop substantial parthenocarpic fruits, respectively. the time-course for pollen grain ... | 2013 | 23002897 |
| fruit load modulates flowering-related gene expression in buds of alternate-bearing 'moncada' mandarin. | gene determination of flowering is the result of complex interactions involving both promoters and inhibitors. in this study, the expression of flowering-related genes at the meristem level in alternate-bearing citrus trees is analysed, together with the interplay between buds and leaves in the determination of flowering. | 2012 | 22915579 |
| carbohydrate control over carotenoid build-up is conditional on fruit ontogeny in clementine fruits. | the final contents of primary and secondary metabolites of the ripe fruit depend on metabolic processes that are tightly regulated during fruit ontogeny. carbohydrate supply during fruit development is known to influence these processes but, with respect to secondary metabolites, we do not really know whether this influence is direct or indirect. here, we hypothesized that the sensitivity of clementine fruit metabolism to carbohydrate supply was conditional on fruit developmental stage. we appli ... | 2013 | 22882610 |
| development of indel markers from citrus clementina (rutaceae) bac-end sequences and interspecific transferability in citrus. | indel markers were developed from bac-end sequences of citrus clementina cv. nules. transferability and polymorphism were tested in the citrus genus to estimate the potential of indel markers mined from a single genotype for use in genetic studies. | 2012 | 22733984 |
| comparative transcriptome analysis of stylar canal cells identifies novel candidate genes implicated in the self-incompatibility response of citrus clementina. | reproductive biology in citrus is still poorly understood. although in recent years several efforts have been made to study pollen-pistil interaction and self-incompatibility, little information is available about the molecular mechanisms regulating these processes. here we report the identification of candidate genes involved in pollen-pistil interaction and self-incompatibility in clementine (citrus clementina hort. ex tan.). these genes have been identified comparing the transcriptomes of las ... | 2012 | 22333138 |
| effect of fruit load on maturity and carotenoid content of clementine (citrus clementina hort. ex tan.) fruits. | citrus fruits contain many secondary metabolites displaying valuable health properties. there is a lot of interest in enhancing citrus quality traits, especially carotenoid contents, by agronomic approaches. in this study the influence of carbohydrate availability on maturity and quality criteria was investigated in clementine fruits during ripening. fruiting branches were girdled and defoliated after fruit set to obtain three levels of fruit load: high (five leaves per fruit), medium (15) and l ... | 2012 | 22311856 |
| relationship between soil temperature and fruit colour development of 'clemenpons' clementine mandarin (citrus clementina hort ex. tan). | in citrus, root temperature regulates rind colouration. however, few studies have investigated the range of temperatures and timing which determine rind colour break. the objective of this study was to determine the relationship between range of soil temperature (st) and rind colour development in the precocious ‘clemenpons’ clementine mandarin. reflective white plastic mulch was used to modify root temperature. | 2012 | 25520981 |
| citrus and prunuscopia-like retrotransposons. | many of the world's most important citrus cultivars ("washington navel", satsumas, clementines) have arisen through somatic mutation. this phenomenon occurs fairly often in the various species and varieties of the genus.the presence of copia-like retrotransposons has been investigated in fruit trees, especially citrus, by using a pcr assay designed to detect copia-like reverse transcriptase (rt) sequences. amplification products from a genotype of each the following species citrus sinensis, citr ... | 1999 | 22665184 |
| comprehensive analysis of ccch-type zinc finger gene family in citrus (clementine mandarin) by genome-wide characterization. | the ccch-type zinc finger proteins comprise a large gene family of regulatory proteins and are widely distributed in eukaryotic organisms. the ccch proteins have been implicated in multiple biological processes and environmental responses in plants. little information is available, however, about ccch genes in plants, especially in woody plants such as citrus. the release of the whole-genome sequence of citrus allowed us to perform a genome-wide analysis of ccch genes and to compare the identifi ... | 2014 | 24820208 |